CONSIDERATIONS TO KNOW ABOUT 6623

The civil war involving the Lê-Trịnh and Mạc dynasties led to 1592, when the army of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors with the Mạc royal loved ones fled towards the northern mountains in the province of Cao Bằng and ongoing to rule there until eventually 1677 when Trịnh Tạc conquered this pas